二氧化铁 - 维基百科,自由的百科全书

二氧化铁
识别
CAS号 12411-15-3  checkY
64766-39-8(过氧化物)  checkY
性质
化学式 FeO2
摩尔质量 87.84 g·mol−1
外观 固体
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

二氧化铁是一种无机化合物,化学式为FeO2,它存在两种异构体,即激发态的过氧化物Fe(O2)和插入型二氧化物(inserted dioxide)OFeIVO,后者更稳定。[1]OFeO和乙烯在固态中反应,可以得到配合物(η2-C2H4)FeO2[2]

Fe(O2)可由激光蒸发的铁和一氧化二氮反应得到,反应同时会生成FeO,但不会生成OFeO。[3]过氧化物FeIIO2也可通过无水FeCl3过氧化氢反应得到。[4]五羰基铁二氧化氮反应,得到FeO(NO2),它受热分解得到FeO2,研究人员认为它可能是含FeIII的自由基,或FeIV的氧化物。[5]黄铁矿型FeO2可由氧化铁氧气在76 GPa反应,或氢氧化氧铁在92 GPa下分解制得,通过高压反应得到的FeO2的铁具有+2和+3价。[6]

单层FeO2具窄带隙(~0.6 eV),表现出半导体性质,对比FeS2(~2 eV)为半金属,而FeSe2FeTe2则具有金属性。[7]

参考文献

[编辑]
  1. ^ Heather J. Kulik, Nicola Marzari. Transition-metal dioxides: A case for the intersite term in Hubbard-model functionals. The Journal of Chemical Physics. 2011-03-07, 134 (9): 094103 [2022-09-03]. ISSN 0021-9606. doi:10.1063/1.3559452. (原始内容存档于2022-09-03) (英语). 
  2. ^ Mohua Chen, Zhengguo Huang, Mingfei Zhou. Matrix isolation infrared spectroscopic and theoretical study of the transition metal (Mn and Fe) dioxide–ethylene complexes. Chemical Physics Letters. 2004-01, 384 (1-3): 165–170 [2022-09-03]. doi:10.1016/j.cplett.2003.12.002 (英语). 
  3. ^ Yasuhiro Yamada, Hirochika Sumino, Yukako Okamura, Hideo Shimasaki, Takeshi Tominaga. Mössbauer studies on laser evaporated iron atoms and their reactions with oxygen in argon matrices. Applied Radiation and Isotopes. 2000-02, 52 (2): 157–164 [2022-09-03]. doi:10.1016/S0969-8043(99)00128-1. (原始内容存档于2018-06-16) (英语). 
  4. ^ Klyuchnikov, N. G.; Gorichev, I. G.; Dukhanin, V. S. Iron peroxide FeO2 compound. Zhurnal Neorganicheskoi Khimii, 1972. 17 (9): 2329-2332.
  5. ^ C. C. Addison, B. F. G. Johnson, N. Logan. 830. The vapour-phase reaction of iron pentacarbonyl with nitrogen dioxide; iron(III) oxide nitrate. Journal of the Chemical Society (Resumed). 1965: 4490 [2022-09-03]. ISSN 0368-1769. doi:10.1039/jr9650004490 (英语). 
  6. ^ Qingyang Hu, Duck Young Kim, Wenge Yang, Liuxiang Yang, Yue Meng, Li Zhang, Ho-Kwang Mao. FeO2 and FeOOH under deep lower-mantle conditions and Earth’s oxygen–hydrogen cycles. Nature. 2016-06-09, 534 (7606): 241–244 [2022-09-03]. ISSN 0028-0836. doi:10.1038/nature18018. (原始内容存档于2022-06-19) (英语). 
  7. ^ Mu Lan, Gang Xiang, Ya Nie, Dingyu Yang, Xi Zhang. The static and dynamic magnetic properties of monolayer iron dioxide and iron dichalcogenides. RSC Advances. 2016, 6 (38): 31758–31761 [2022-09-03]. ISSN 2046-2069. doi:10.1039/C6RA03480B (英语). 

拓展阅读

[编辑]
  • Bo Gyu Jang, Jin Liu, Qingyang Hu, Kristjan Haule, Ho-Kwang Mao, Wendy L. Mao, Duck Young Kim, Ji Hoon Shim. Electronic spin transition in FeO 2 : Evidence for Fe(II) with peroxide O 2 2 −. Physical Review B. 2019-07-15, 100 (1) [2022-09-03]. ISSN 2469-9950. doi:10.1103/PhysRevB.100.014418 (英语).